/*
Eteria IRC Client, an RFC 1459 compliant client program written in Java.
Copyright (C) 2000-2001  Javier Kohen <jkohen at tough.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

package ar.com.jkohen.applet;

import java.applet.AudioClip;
import java.net.*;
import java.io.*;
import java.lang.reflect.*;


public class NewAudioClip implements AudioClip
{
	private AudioClip au;
	private URL url;
	
	private Object as, cas, play;
	private Constructor constructor;
	private Method start;
	private Method stop;

    public NewAudioClip(URL u)
    {
		/*
		** We must check if Java 1.2 method java.Applet.newAudioClip exists.
		** If it does not, we try to use Sun's old libs.
		** So this class play Java compatible sound in any case, applications as well applets.
		*/
		
		this.url = u;
		
		try
		{
			audioClip();
		}
		catch (Exception ex1)
		{
			try
			{
				sunClip();
			}
			catch (Exception ex2) {};
		}
	}

	private void audioClip() throws Exception
	{
		Class AudioClass = Class.forName("java.applet.Applet");
		Class args[] = { URL.class };
		Method newclip = AudioClass.getMethod("newAudioClip", args);
		Object params[] = { url };
		Object obj = newclip.invoke(null, params);
		au = (AudioClip)obj;
	}
		
	private void sunClip() throws Exception
	{
		Class AudioClass = Class.forName("sun.audio.AudioStream");
		constructor = AudioClass.getConstructor(new Class[] { InputStream.class } );		
		
		Class PlayerClass = Class.forName("sun.audio.AudioPlayer");
		Field player = PlayerClass.getField("player");
		play = player.get(null);
		
		start = PlayerClass.getMethod("start", new Class[] { InputStream.class } ); 
		stop = PlayerClass.getMethod("stop", new Class[] { InputStream.class } ); 
    }

    public void play()
    {
		try
		{
			if (play != null && start != null)
			{
				/*
				** as = new AudioStream(u.openStream());
				** AudioPlayer.player.start(as);
				*/
				
				as = constructor.newInstance(new Object[] { url.openStream() } );
				start.invoke(play, new Object[] { as }); 
				return;
			}
			
			if (au != null)
				au.play();
		}
		catch (Exception ex) {}
    }
	
    public void stop()
    {
		try
		{
			if (play != null && stop != null)
			{
				if (as != null)
				{
					/*
					** AudioPlayer.player.stop(as);
					*/
					
					stop.invoke(play, new Object[] { as });
					as = null;
				}
				if (cas != null)
				{
					/*
					** AudioPlayer.player.stop(cas);
					*/
					
					stop.invoke(play, new Object[] { cas });
					cas = null;
				}
				return;
			}
			
			if (au != null)
				au.stop();
		}
		catch (Exception ex) {}
    }

    public void loop()
    {
		try
		{
			if (play != null && start != null)
			{
				/*
				** as = new AudioStream(url.openStream());
				** AudioData data = as.getData();
				** ContinuousAudioDataStream cas = new ContinuousAudioDataStream(data);
				** AudioPlayer.player.start(cas);
				*/
			
				as = constructor.newInstance(new Object[] { url.openStream() } );
			
				Class AudioClass = Class.forName("sun.audio.AudioStream");
				Method getData = AudioClass.getMethod("getData", null);
				Object data = getData.invoke(as, null);
			
				Class CASClass = Class.forName("sun.audio.ContinuousAudioDataStream");
				Constructor constructor = CASClass.getConstructor(new Class[] { Class.forName("sun.audio.AudioData") } );
				cas = constructor.newInstance(new Object[] { data } );
			
				start.invoke(play, new Object[] { cas });
				return;
			}
			
			if (au != null)
				au.loop();
		}
		catch (Exception ex) {}
    }
}